EO
Emma Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Emma Olson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 2-person household.
Age 75
b. ~1865
Female
Head
Born: Sweden
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Rockford |
| Est. Birth Year | ~1865 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Emma | Age | Birth yr |
|---|---|---|---|---|
| Evald Olson | Son | — | 36 | ~1904 |
| Emma Olson | Head | — | 75 | ~1865 |
Census Appearances
1920
Winnebago, Illinois
Spouse, age 54
Winnebago, Illinois · implied b. ~1866 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1886 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Inspector |
| Industry | Knitting Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Winnebago, Illinois
Other, age 66
Winnebago, Illinois · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Age at First Marriage | 35 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Winnebago-County, Illinois
Head, age 75
Winnebago-County, Illinois · implied b. ~1865 — 2 household members
| Surname | Olson |
| Given Name | Emma |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Rockford |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Emma Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Emma Olson
Head · 1940 · age 75 · b. ~1865 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
13 people indexed on this census page (nara:1940:m-t0627-00913-00727)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emma Olson THIS PERSON | 75 | Head | — | Sweden |
| 2 | Evald Olson | 36 | Son | Machine Operator | Illinois |
| 3 | Lloyd Sheik | 41 | Head | Stonecutter | Illinois |
| 4 | Violet Sheik | 35 | Wife | — | Illinois |
| 5 | Thomas Sheik | 15 | Son | — | Illinois |
| 6 | Shirley Sheik | 14 | Daughter | — | Illinois |
| 7 | Roger Sheik | 10 | Son | — | Illinois |
| 8 | Phillip Sheik | 7 | Son | — | Illinois |
| 9 | Swan Bollin | 66 | Lodger | Night Watchman | Sweden |
| 11 | John Gustafson | 69 | Head | — | Sweden |
| 12 | Ida Gustafson | 72 | Wife | — | Sweden |
| 13 | Son Hjalmer | 44 | Son | Painter - Paper Hanger | Illinois |
| 14 | Daughter Alfoeld | 33 | Daughter | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)